Outboard motor.



' C. A. & 0. W. HULT.

OUTBOARD'MOTOR.

APPL|C/ \TION FILED JULY 3. 1913.

Patented Jilly 13, 1915.

a SHEETS-SHEET1 m W m C. A. & O. W. HULT.

OUTBOARD MOTOR.

APPLICATION FILED JULY 3,1913.

LMQBAWQ Patented July 13, 1915.

3 SHEETSSHEET Z- ]72 v e mid s C. A. & 0. W. HULT.

OUTBOARD MOTOR. APPLICATION FILED JULY'3. 1913.

Patented July 13, 1915.

3 SHEETSSHEET 3.

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In 0 ZIL lama OW W 25M CARI: ALRIK HULT AND OSCAR WALFRID HULT, 0FSTOCKEOLM, SWEDEN.

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ournonnn Moron.

To all whom it may concern:

Be it known that we, CARL ALnIx HULT and OSCAR WALFRID Hum, subjects ofthe King of Sweden, and residents of 1 Inedalsgatan, Stockholm, in theKingdom of Sweden, engineers, have invented certain new and usefulImprovements in Outboard Motors, of whiclf the following is aspecification, reference being made to the accompanying drawings.

Outboard motors constructed in accordance with the present invention arechiefly characterized by the fact that the motor can be turned around avertical (or somewhat inclined) axis (6. g. the center line of the motorshaft). As a result of this arrangement the motor can be fixed to theboat in a simple and suitable manner and the steering device ismaterially simplified. A. simple and suitable method of supporting themotor is to place the sleeve which, usually, surrounds the motor shaft(hereinafter called the shaft sleeve) in a second sleeve (hereinaftercalled the fixing sleeve), which latter sleeve is pivotally connectedwith that part of the supporting device of the motor which is fixed tothe boat, the shaft sleeve also being adjustable in the fixing sleeve.

By this arrangement the propeller can in asimple manner be adjusted intothe position desired independently of the various shapes and sizes ofdifferent boats at the stern.

Not merely the motor itself can be turned I around a vertical (orsomewhat inclined) till axis, but parts appurtenant thereto, 6. g. thebattery for the ignition of the explosive charges or an equivalentdevice, the fuel tank, etc., are rotatable with the motor. In thismanner the motor itself is more directly connected with its appurtenantparts, the entire installation is easily protected against rain and thelike by means of a common casing, and all connections which mightinterfere with the turning of the motor are eliminated.

The invention is illustratively exemplified in the accompanyingdrawings, wherein- Figure 1 is a front elevational view, with parts insection, of a motor embodying our invention. Fig. 2 is an endelevational view thereof; Fig. 3 is an elevational view of modifiedmeans for securing the motor to a' boat; Fig. 4 is a top plan view, withparts in section, of the construction illustrated in Fig. 3; Fig. 5 is asimilar view to Fig. 4 of modified means for retaining the fixingSpecification of Letters Patent. Application filed July 3, 1913. SerialNo. 777,152.

' Patented July 13, 1915.

sleeve in position; Fig. 6 is an elevational view of a still furthermodified form of means for securing the motor to a boat; Fig. 7 1s a topplan view, with parts in section, of the construction illustrated inFig. 6; Fig. 8 is an elevational view, with a part in, section, of meansfor counteracting the tendency of the propeller to turn the tiller; F1g. 9 is a horizontal sectional view on the line AB of Fig. 8;. Fig. 10is an elevational view, with apart in section, of a modified form of thestructure shown in Fig. 8; Fig. 11 is an elevational view, with a partin section, of a still further modified form of the structure shown inFig. 8; Fig. 12 is an elevational view, partly in section, and Fig. 13is a vertical sectional view, of the motor shaft and propeller shaft anda form of gearing therebetween.

The motor shown by way of example is a one-cylinder motor. The motorcylinder 1 is, fixed to one end of the crank casing 2 of the motor, atthe other end of which crank casing is fixed a box 3, containing theelectric ignition device (cells 4: and parts appertaining thereto).

7 The motor and the ignition device are covered and surrounded by a hood6 fixed to the motor and thus participating in its turning. The roof ofthis hood carries a starting device. In the hood6 there is also thebenzin tank 7 likewise turning with the motor. 7

In outboard motors now in use the starting handle placed on the flywheel of the motor, rotates at a high speed, when the motor is running,involving danger to persons and property. In order to obviate thisdanger the handle 36 is fixed to a part or disk 38, rotatableconcentrically with the fly wheel 37 of the motor (or other partrotating with the motor shaft), said part or disk running in a circularpath 40 fixed on the hood 6. Thestarting handle 36 is mountedon the disk38 in such a manner that it can be moved toward the fly wheel 37, but isautomatically (by a spring 41) carried back,

started, the handle is pressed downward,

the spindle 36 then passing into the hole, or one of the holes, of thefly wheel. Then the disk 38 is revolved, so that the motor isset in'motion, whereupon the handle 36 is left free, so that it is carried backactuated by the spring 41, and immediately afterward the freely runningdisk 38 stops of its own accord.

As in other outboard motors there depends from the crank casing 2 asleeve 8 (the shaft sleeve) surrounding the motor shaft. outboard motorsconstructed in accordance with this invention, the shaft sleeve 8 issurrounded by a sleeve 9 (the fixing sleeve), which is pivotallyconnected with that part of the supporting device which is fixed to theboat, besides which the shaft sleeve can be adjusted at differentheights in the fixing sleeve. By means of this arrangement a motor canbe attached to boats of a great variety of sizes and shapes at thestern.

In the device illustrated in Figs. 1 and 2 the fixing sleeve 9surrounding the motor sleeve 8 is by means of a pivot 10 pivotallyconnected with a bow piece 11, which is fixed to the boat by means ofclamping screws 12. When the fixing sleeve has been adjusted relativelyto the bow piece 11 fixed to the boat, so that the motor shaft isvertical, the said fixing sleeve is locked in its position in a suitablemanner, 6. g. by tightening a wing nut 13 placed on a bolt 14- providedwith a head, which bolt 14 is mounted in. a projection 15 on the bowpiece 11 and passes through curved grooves 16 in projections or cars 17on the fixing sleeve and embracing the projection 15. At the upper endof the fixingsleeve 9 rests a clamping ring or bow 18, by means of whichthe propeller is held at the desired height. By loosening and againtightening the screw bolt 19 passing through the ends of the clampingbow 18, the said clamping bow can be placed at a desired place on theshaft sleeve, and thus the height of the propeller can be adjustedaccording to the height of the stern of the boat. In the arrangementshown in Figs. 1 and 2, the tiller 20 is fixed to the crank casing 2. p

In the modified form of invention shown in Figs. 3 and 4 the fixingsleeve 9 is placed at one side of a ring or disk 21, which is embracedby a clamping bow 22 placed on the bow piece 11, said clamping bow 22being tightened around the disk by means of a screw bolt 23, so that thedisk is locked in the position into which it has been adjusted. In orderto retain the disk 21 in the clamping bow 22, even whenthe bow is nottightened around the disk, the latter is provided with a flange 24resting against one side of the clamping bow, and there is also screwedinto the disk a ring or disk 25, provided with a flange 26, which restsagainst the other side of the clamping bow. As shown in Fig. 3, thetiller 20 maybe fixed in the clamping bow 18.

The arrangement shown in Fig. 5 differs from the arrangement justdescribed with reference to Figs. 3 and 4, merely in the fact that thedisk 21 is provided on its circumference with a groove 27, into whichenters the bolt 23, thereby preventing the disk from leaving theclamping bow, when the latter has been loosened. Instead of consistingof a single springy part, the clamping bow 22 may consist of two parts,pivotally connected with one another.

In the arrangement shown in Figs. 6 and 7 the clamping bow 22 isreplaced by a ring or disk 28, likewise mounted on the bow piece 11, thering or disk 28 having an inwardly directed conical surface, againstwhich the correspondingly formed circumference of the ring or disk 21 isheld steadily pressed, 6. g. by means of a nut- 29 resting against thedisk 28 and mounted on a threaded pin 30 which is fixed in the disk 21.

As is shown by dotted lines in Figs. 4, 5 and 7, the fixing sleeve 9-ifthis is considered necessary in order to obtain greater strength andsteadiness-may on its side turned away from the ring or disk 21 beprovided with a pivot 31, journaled in an arm 32 extending from the bowpiece 11.

' As is known, a propeller tends to turn its ,gshaft, or a rudderconnected with it, out of the direction which the propeller shaft orrudder ought to occupy for steering a certa-in course. In order toobviate, more or less, this drawback, so that the steersman is in agreater or less degree relieved of the inconvenience caused by the saidtendency, a checking or braking device can be placed between the partacted on in the steering and a part fixed relatively to the boat. Figs.8 to 11 show different forms of a device for this purpose. According toFig. 8 the tiller 20 (tiller is here understood to mean the rod orequivalent part which is acted upon in the steering, whether the latteris effected by means of a rudder or by means of the propeller, or both)fixed in the clamping bow 18 is surrounded by a sleeve 42, carrying abrake shoe 43, which cooperates with a brake path 44 arranged on thefixing sleeve 9. The tiller is surrounded by a spiral spring 45, whichpresses the brake shoe against the brake path.

In the arrangement indicated in'Fig. 10,

the tiller 20 is pivotally fixed to the clamping bow 18, so that thebrake shoe 43 is pressed against the brake path by pressing the tillerdownward.

The arrangement shown in Fig. 11 is a modification of thearrangementindicated in Fig. 8 in so far as the spring 45 is replaced by a nut 46,with the aid of which the brake shoe 43 is pressed more or less hardagainst the brake ath 44.

In Figs. 12 and 13 is shown a form of gearing between the motor shaft oran extension of the same and the propeller shaft. This arrangement,which is suitable particularly in cases where the motor shaft rotateswith a speed which must be reduced in transmitting to the propellershaft, consists therein that the motor shaft (or its extension) belowforms, or is provided with, a Worm 33, which engages with a worm wheel35 mounted on the propeller shaft.

Although the present invention is shown applied to a one-cylinder motor,it can obviously also be applied to motors with two or more cylinders.

Having now described our invention, What we claim as new and desire tosecure by Letters Patent is:

1. In a device of the class described, the combination of a boat, amotor therefor having an extended motor shaft and a sleeve. inclosingsaid shaft, a second sleeve in which said first named sleeve and theparts appurtenant thereto are longitudinally adjustable, a substantiallyannular clamping ring, encircling said first named sleeve and movablealong the same, said clamping ring being adapted to abut said secondnamed sleeve and retain the first named sleeve and its appurtenant partsin longitudinally adjusted position, a clamp attachable to said boat, aconnection between said clamp and said second named sleeve whereby theangular relation of said parts may be adjusted, means whereby said partsmay be locked in adjusted position, and a tiller operatively connectedto said clamping ring.

2. In a device of the class described, the combination of a boat, amotor therefor havin g an extended motor shaft and a sleeve inclosingsaid shaft, a second sleeve in which said first named sleeve and theparts appurtenant thereto are longitudinally adjustable, a substantiallyannular clamping ring encircling said first named sleeve and movablealong the same, said clamping ring being adapted to abut said secondnamed sleeve and retain the first named sleeve and its appurtenant partsin longitudinally adjusted position, a clamp attachable to said boat, aconnection between said clamp and said second named sleeve whereby theangular relation of said parts may be adjusted, means whereby said partsmay be locked in adjusted position, a tiller operatively connected tosaid clamping ring, and means for braking the action of said tiller.

3. In a device of the class described, the combination of a boat, amotor therefor having an extended motor shaft and a sleeve inclosingsaid shaft, a second sleeve in which said first named sleeve and theparts appurtenant thereto are longitudinally adjustable, a substantiallyannular clamping ring encircling said first named sleeve and movablealong the same, said clamping ring being adapted to abut said secondnamed sleeve and retain the first named sleeve and its appurtenant partsin longitudinally adjusted position, a clamp attachable to said boat, aconnection between said clamp and said second named sleeve whereby theangular relation of said parts may be adjusted, means whereby said partsmay be locked in adj usted position, a tiller operatively connected tosaid clamping ring, and means for braking the action of said tiller,said last named means including a brake shoe carried by said tiller anda brake path engaged by said shoe.

4. In a device of the character described, the combination of a boat, amotor therefor provided with a fly wheel, means whereby said motor maybe vertically adjusted in relation to said boat, means whereby theangular relation of said motor to said boat may be adjusted, a looselyrevoluble disk concentric with said fly wheel, and a yieldingly mountedstarting handle carried by said disk and adapted to releasably connectthe latter to the fly wheel.

In witness whereof we have hereunto set our hands in presence of twowitnesses.

CARL ALRIK HULT. OSCAR WALFRID HULT. Witnesses:

CARL T11. SUNnHoLM, H. S. OIILSSEN.

